Best Programming Reference App

141+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated June 2026

With an average user rating of 3.9★, the programming reference app category is one of the App Store's strongest. Browse all 141+ apps we track, sorted so the most loved ones surface first.

Top Picks for Programming Reference App

Programming Hub: Learn Coding#1

Programming Hub: Learn Coding by Rightsol PTE LTD

Code Java,C,Python,AI,Compiler
Editor's Choice
📚 Education
4.8😐(9.8K ratings)
FreeIn-App Purchases
Programming Hub: Learn Coding screenshot 1
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Programming Hub: Learn Coding screenshot 6

Learn to code through interactive, game-like lessons. Access over 5000 code examples and 35+ courses in various programming languages, all within a single app. Practice and build your skills with the world's fastest compiler.

What We Love

  • 👍 Easy to understand lessons
  • 🚀 Bite-sized learning content
  • 💡 Wide variety of courses
  • 🎓 Provides certificates upon completion

Room to Improve

  • 🐛 Buggy app with crashes and glitches
  • 🔒 Issues with pro access and purchases
  • 🤔 Lack of depth in some courses
Code! Learn Swift Version#2

Code! Learn Swift Version by Happy Moose Apps

Easily learn how to program
Strong Contender
📚 Education
4.4😊(6.7K ratings)
FreeIn-App Purchases
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Learn to code in Swift directly on your mobile device with interactive lessons. Practice writing your own code with instant feedback and step-by-step guidance to master programming concepts.

What We Love

  • 👍 Easy to follow
  • 🚀 Hands-on learning
  • 💡 Helpful video tutorials
  • 👍 Accessible for beginners

Room to Improve

  • 🐛 Crashes on some devices
  • 🐛 Specific syntax requirements
  • 💰 Paid content after initial free lessons
Sololearn: Learn to Code#3

Sololearn: Learn to Code by SoloLearn Inc.

Python, Java, C#, HTML courses
Worth Considering
📚 Education
4.8😊(81K ratings)
FreeAdsIn-App Purchases
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Learn programming languages like Python, Java, and C# through interactive lessons and hands-on practice. This app offers bite-sized courses, coding challenges, and AI-powered support to help you build practical coding skills on the go. Join millions of learners worldwide advancing their careers and creating real-world solutions.

What We Love

  • 👍 Fun and engaging
  • 🚀 Helps get an understanding of code
  • 🚀 Easy to learn and use
  • 👍 Great for beginners

Room to Improve

  • 🐛 Outdated terms and lack of intelligence in verifying answers
  • 🐛 Issues with the app crashing or not loading properly
  • 💰 Expensive subscription, especially compared to other options

More Programming Reference App apps to explore

4
SmartBox Reference Guide
SmartBox Reference Guide
SmartBox Reference Guide
by Smart Box Technology, LLC
Free

Learn programming concepts through guided lessons. This educational tool breaks down key programming ideas for understanding, not for live coding. Ideal for beginners wanting to grasp fundamental principles.

Step-by-step programming guidanceClear explanations of key conceptsEducational training tool
🔧 Utilities
(34)
free
5
MIT App Inventor
MIT App Inventor
MIT App Inventor
by Massachusetts Institute of Technology
Free

Learn programming and build mobile applications using a visual, block-based interface. This educational tool helps users understand computational thinking and design their own projects, with built-in tutorials and over 60 components for diverse app creation.

Visual block-based programmingMobile app developmentComputational thinking education
📚 Education
(834)
free
6
Codecademy Go
Codecademy Go
Codecademy Go
Practice coding anywhere
Free

Practice coding skills on the go with personalized recommendations and daily flashcards. Reinforce concepts, review syntax, and track your progress to stay on track with your learning goals. Learn various tech skills like web development, data science, and AI.

Personalized course recommendationsDaily coding flashcardsPractice coding syntax
📚 Education
(38K)
free with in-app purchases
7
PEPID®
PEPID®
PEPID®
by PEPID, LLC
Free

Provides healthcare professionals with essential tools for patient care, including a vast drug database, medical calculators, and visual aids. Content is regularly updated and clinically independent, offering reliable information for various medical roles.

Largest drug databaseMedical calculatorsHigh-res pill photos
🏥 Medical
(2.9K)
free
8
Encode: Learn to Code
Encode: Learn to Code
Encode: Learn to Code
Learn coding at your pace
Free

Learn to code with interactive, bite-sized lessons designed for busy schedules. Master popular languages like Python, JavaScript, and SQL through hands-on exercises and challenges. Ideal for beginners, this app makes coding accessible and fun, offering certificates upon completion.

Bite-sized interactive lessonsHands-on coding exercisesLearn Python, JavaScript, HTML/CSS, SQL
📚 Education
(6.1K)
free with in-app purchases
9
Code AI: Learn Programming
Code AI: Learn Programming
Code AI: Learn Programming
Scan & Analyze code with AI
Free

This AI-powered assistant helps you generate, debug, and optimize code from natural language prompts. It supports numerous programming languages and offers a clean interface for efficient coding on your device.

Generate code from natural languageDebug and improve existing codeOptimize code performance
🛠️ Developer Tools
(57)
freemium
10
Learn to code with Yolmo®
Learn to code with Yolmo®
Learn to code with Yolmo®
Your trusted coding companion
Free

This interactive coding workspace simplifies learning to code with over 25 programming languages. It offers a self-guided experience without complex setups, allowing users to build coding foundations at their own pace. Explore playgrounds and discover the fun of coding.

Interactive coding workspaceSupports 25+ programming languagesSelf-guided learning experience
📚 Education
(4.5K)
free with in-app purchases
11
freeCodeCamp
freeCodeCamp
freeCodeCamp
The freeCodeCamp Mobile App
Free

This app provides coding challenges, tutorials, and a podcast to help users learn and improve their programming skills. It's designed for beginners and experienced coders alike, offering a comprehensive resource for expanding coding knowledge.

Coding challengesProgramming tutorialsPodcast for coders
📚 Education
(65)
free
12
Learn C Programming: Programiz
Learn C Programming: Programiz
Learn C Programming: Programiz
Learn C step-by-step
Free

Learn C programming with interactive tutorials, quizzes, and a built-in compiler. This app offers a step-by-step approach for beginners to master core concepts and practice coding with practical examples. Unlock an ad-free experience and advanced features with a subscription.

Step-by-step C tutorialsInteractive quizzes with feedbackBuilt-in C compiler to write and run code
📚 Education
(72)
freemium
13
Learn BASIC Programming
Learn BASIC Programming
Learn BASIC Programming
Programming made easy.
Free

Learn to write and run computer programs on your iPhone or iPad. This app offers a beginner-friendly introduction to BASIC programming, complete with a debugger and sample code to get you started quickly. Share your creations with friends and build your first game within an hour.

Beginner-friendly BASICWrite and run programs on iOSBuilt-in debugger
📚 Education
(20)
free
14
Navy App Locker
Navy App Locker
Navy App Locker
by Program Executive Office for Enterprise Information Systems, Sea Warrior Program
Free

This official U.S. Navy mobile service provides a centralized platform to discover and download apps developed by the Navy. It offers detailed information, screenshots, and direct links to commercial app stores, including training applications that can submit course credits.

Discover U.S. Navy mobile appsDirect download links to app storesView app details, screenshots, and links
🔍 Reference
(120)
free
15
php - programming language
php - programming language
php - programming language
Good helper for PHP Learn
Free

Learn, run, and share PHP scripts with this iOS app. Features include autocompletion, code coloring, and a built-in browser for learning materials. Save and manage your code and learning resources easily.

AutocompletionCode coloringBuilt-in browser
🛠️ Developer Tools
(41)
free with in-app purchases
16
TapCoding
TapCoding
TapCoding
coding trainer for Swift
Free

Learn Swift programming through interactive, bite-sized exercises. Build code with drag-and-drop, test your knowledge with true/false questions, and practice typing code to build muscle memory. Detect errors and improve your logic and syntax comprehension.

Bite-sized coding exercisesDrag-and-drop code buildingTrue/false concept reinforcement
📚 Education
(344)
free with in-app purchases
17
Basic Programming Language
Basic Programming Language
Basic Programming Language
Basic Code Interpreter
Free

Learn and run classic Basic programming code on your mobile device. This app offers a code editor with syntax highlighting and provides online references and samples for learning. It's ideal for studying, calculations, and entertainment.

Compile and run Basic programsText input and outputSyntax highlighting editor
🎬 Entertainment
(12)
free with in-app purchases
18
Code Runner App Compiler & IDE
Code Runner App Compiler & IDE
Code Runner App Compiler & IDE
Run C,C++,Java,JS,C#,Rust,Go
Free

This app is a mobile coding editor and compiler supporting over 30 programming languages. It offers features like syntax highlighting, code completion, an AI assistant for refactoring and bug checking, and GitHub integration for managing repositories. It's designed for learning, practicing, and working on programming projects anywhere.

Supports 30+ programming languagesFull programming code syntax highlightingCode completion and editor actions
🛠️ Developer Tools
(89)
free with in-app purchases
19
Programming master
Programming master
Programming master
Programmer develop toolbox
Free

This app offers code editors for eight popular programming languages and various development tools like regex and QR code generators. It also includes extensive documentation and tutorials for mobile, front-end, server, database, cloud computing, and AI topics.

Code editors for 8 popular languagesRegular expression toolData encryption/decryption
🔧 Utilities
(17)
free with in-app purchases
20
CodeSnack IDE
CodeSnack IDE
CodeSnack IDE
AI-Powered Coding On-the-Go
Free

This mobile IDE allows you to write, run, and deploy code on your device. It offers AI-powered features for project creation, bug fixing, and code explanation, supporting 18 programming languages and various project templates.

AI-generated project creationSmart bug detection and fixesCode explanation and Q&A
🛠️ Developer Tools
(1.5K)
freemium